batgrbproduct Analysis for Trigger=557976

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Jun 12 22:42:34 EDT 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger557976/GCN5_download_cron
======================================================================

  Trigger: 00557976      Segment: 000

  BAT Trigger Time: 392700152.832   [s; MET]
      Trigger Stop: 392700153.856   [s; MET]
               UTC: 2013-06-12T03:22:22.167880    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 259.804329470416   Dec: 16.7058164669719  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.62
     Image Trigger?:     NO
     Rate S/N Ratio:     14.6287388383278  [ if not an image trigger ]
     Image S/N Ratio:    7.62

  Flight Position:   [ source = BAT ]
    RA: 259.804329470416   Dec: 16.7058164669719  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 259.761157935817   Dec: 16.7418662382706  [deg; J2000]  
        { 17h 19m 02.7s , +16d 44' 30.7" }
         +/- 2.42506523360577 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.34103360554607 [arcmin] (formal 1-sigma fit error)
    SNR: 8.58051759918928
 
  Angular difference between Flight and Ground position is 3.291281 arcmin
 
  Partial Coding Fraction: 0.3476562    [ including projection effects ]

  Duration
     T90: 112 +/- 65.9696900098826
        Measured from: -3.83199989795685
                   to: 108.168000102043     [s; relative to TRIGTIME]
     T50: 32 +/- 48
        Measured from: -3.83199989795685
                   to: 28.1680001020432     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 3.66799998283386     
                   to: 4.66799998283386     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -3.83200001716614     
                   to: 124.167999982834     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.239621   0.459578   0.131410   0.149697
           0.093279   0.099989   0.092658   0.095720 [error]
 Peak      0.011710   0.015786  -0.010469  -0.007173
           0.011089   0.011767   0.011178   0.010680 [error]

     [ fluence units of on-axis counts / fully illuminated detector ] 

======================================================================
 
=== Fluence/Peak Flux Summary ===
 
              Model    Band1    Band2    Band3    Band4    Band5    Total      
                       15-25    25-50   50-100  100-350   15-150   15-350   keV
Fluence   Power-law 9.38e-08 1.49e-07 1.79e-07 4.18e-07 5.42e-07 8.41e-07   erg/cm2
              Error 3.99e-08 4.71e-08 8.31e-08 4.63e-07 2.03e-07 4.83e-07   erg/cm2
Peak flux Power-law 1.44e-01 7.14e-02 2.16e-02 8.29e-03 2.42e-01 2.46e-01   ph/cm2/s
              Error 1.62e-01 8.38e-02 4.69e-02 2.21e-01 2.63e-01 2.72e-01   ph/cm2/s
 
Fluence   Cutoff-PL 7.12e-08 2.43e-07 5.15e-08 9.08e-11 3.66e-07 3.66e-07   erg/cm2
              Error 4.39e-08 7.65e-08 9.41e-08 1.89e-08 1.42e-07 1.43e-07   erg/cm2
Peak flux Cutoff-PL 9.04e-02 1.65e-01 5.07e-03 2.91e-08 2.61e-01 2.61e-01   ph/cm2/s
              Error 1.41e-01 1.19e-01 4.11e-02 2.73e-02 2.51e-01 2.51e-01   ph/cm2/s
 
Fluence        Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
              Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
Peak flux      Band 7.18e-01 7.89e-01 1.68e-01 1.71e+00 0.00e+00 0.00e+00   ph/cm2/s
              Error 2.24e-01 1.79e-01 1.40e-01 3.48e-01 0.00e+00 0.00e+00   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.737    0.513    -      -           4.67e-04 1.69e-04   44.790 57
CPL  -5.286    0.000      35.7    9.3      1.34e+01 1.14e+04   38.190 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.743    0.000    -      -           1.05e-03 1.71e-03   55.270 57
CPL  -0.960    0.000      29.8    0.0      2.34e-01 0.00e+00   54.410 56
 
Model      : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index   : photon index: E^-{Ph_index} (minus sign is not included in the index)
Ph_90err   : 90% error of the photon index
Epeak      : Epeak in keV
Epeak_90err: 90% error of Epeak
Norm       : normalization at 50 keV in PL model and at 1 keV in CPL model
Nomr_90err : 90% error of the normalization
chi2       : Chi-Squared
dof        : degree of freedom
 
=== T90/T50 calculation in the 50-300 keV band (BATSE band) using 64 ms lc ===
 
T90 in the 50-300 keV band: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  128.000   -3.832  124.168
T90   112.000   -3.832  108.168
T50    32.000   -3.832   28.168
Peak    1.000    3.668    4.668

Image

Pre-slew 15-350 keV image (Event data; bkg subtracted)

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  259.7612 +16.7419 0.0225   34.5   40.9       1.0012     8.6  TRIG_00557976       
------------------------------------------
 
Foreground time interval of the image:
 -3.832  17.169 (delta_t =  21.001 [sec])
Background time interval of the image:
-179.832  -3.832 (delta_t = 176.000 [sec])

Lightcurves

Notes:

1 s binning

From T0-310 s to T0+310 s
From T100_start - 20 s to T100_end + 30 s
Full time interval

64 ms binning

Full time interval
From T100_start to T100_end
From T0-5 sec to T0+5 sec

16 ms binning

From T100_start-5 s to T100_start+5 s

8 ms binning

From T100_start-3 s to T100_start+3 s

2 ms binning

From T100_start-1 s to T100_start+1 s

SN=5 or 10 sec. binning (whichever binning is satisfied first)

SN=5 or 10 sec. binning (T < 200 sec)

Spectra

Notes:

Time averaged spectrum fit using the pre-slew DRM

Power-law model
Multiple GTIs in the spectrum
tstart tstop
-3.832000 62.408000
63.168000 65.603600
67.168000 124.168000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.73705     ( -0.492829   0.53298 )
Norm@50keV  : 4.67104E-04    ( -0.000170284   0.000166833 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.79 using 59 PHA bins.
# Reduced chi-squared =         0.7858 for     57 degrees of freedom 
# Null hypothesis probability =   8.796485e-01
 
Photon flux (15-150 keV)    in 125.7 sec: 6.28624E-02 ( -0.0198481  0.0198494 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.41863e-07 ( -1.96268e-07  2.09904e-07 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-3.832000 62.408000
63.168000 65.603600
67.168000 124.168000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -5.28581     (     )
Epeak [keV] : 35.7352      ( -5.88409 12.8159 )
Norm@50keV  : 13.4437    ( -14.2282   22841.5 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.19 using 59 PHA bins.
# Reduced chi-squared =         0.6819 for     56 degrees of freedom 
# Null hypothesis probability =   9.670820e-01
 
Photon flux (15-150 keV)    in 125.7 sec: 5.63946E-02 ( -0.0176839  0.0186743 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.65756e-07 ( -1.21888e-07  1.62118e-07 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
-3.832000 62.408000
63.168000 65.603600
67.168000 124.168000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -4.61079   -5 )
beta        : -3.46606    ( 3.46472   1.41623 )
Epeak [keV] : 34.5854      ( -7.77261 7.48284 )
Norm@50keV   : 10.8771    ( -3.07616   40.3252 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.57 using 59 PHA bins.
# Reduced chi-squared =         0.6831 for     55 degrees of freedom 
# Null hypothesis probability =   9.651483e-01
 
Photon flux (15-150 keV)    in 125.7 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 10.0427  (-2.26829  3.16734)
R^2/D10^2   : 3.32281E-02  (-0.0332281   0.0532955)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.35 using 59 PHA bins.
# Reduced chi-squared =         0.6903 for     57 degrees of freedom 
# Null hypothesis probability =   9.640195e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.592e-08   5.203e-08
25- 50  2.149e-07   1.326e-07
50-150  1.136e-07   8.449e-08
15-150  4.144e-07   2.346e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 82.3945       (-46.8906      -82.3192)
Norm        : 0.300783       (-0.106031     0.1651)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.37 using 59 PHA bins.
# Reduced chi-squared =         0.7609 for     57 degrees of freedom 
# Null hypothesis probability =   9.084895e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.828e-08   5.983e-08
25- 50  1.629e-07   1.008e-07
50-150  2.345e-07   2.045e-07
15-150  4.957e-07   3.427e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 0.127575        (1.64499      -0.127575)
R1^2/D10^2  : 3.78296E+14        (-3.78296e+14      -3.78296e+14)
kT2 [keV]   : 10.0428        (-2.26843      3.16719)
R2^2/D10^2  : 3.32265E-02    (-0.0332265   0.0532972)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.35 using 59 PHA bins.
# Reduced chi-squared =         0.7154 for     55 degrees of freedom 
# Null hypothesis probability =   9.450087e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00

Peak spectrum fit

Power-law model
Time interval is from    3.668 sec. to    4.668 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.74295     ( -2.70737   -2.70737 )
Norm@50keV  : 1.05185E-03    ( -0.00105502   0.00236293 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.27 using 59 PHA bins.
# Reduced chi-squared =         0.9697 for     57 degrees of freedom 
# Null hypothesis probability =   5.401054e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.242106 ( -0.242106  0.284272 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.14565e-08 ( -1.14565e-08  2.00316e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    3.668 sec. to    4.668 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.959946     (     )
Epeak [keV] : 29.7951      (   )
Norm@50keV  : 0.233959    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.41 using 59 PHA bins.
# Reduced chi-squared =         0.9715 for     56 degrees of freedom 
# Null hypothesis probability =   5.353987e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.260636 ( -0.260636  0.242348 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.2193e-08 ( -1.2193e-08  1.3003e-08 ) ergs/cm2
 
Band function
Time interval is from    3.668 sec. to    4.668 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.93652   ( -4.93652   -4.93652 )
beta        : -9.34826    ( 9.34826   13.7404 )
Epeak [keV] : 31.7903      ( -31.7903 25.6894 )
Norm@50keV   : 82.6786    ( -82.6786   7.34316e+07 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.99 using 59 PHA bins.
# Reduced chi-squared =         0.9817 for     55 degrees of freedom 
# Null hypothesis probability =   5.130669e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 7.87335  (-7.73727  10.8518)
R^2/D10^2   : 0.368856  (-0.376743   -0.376743)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.30 using 59 PHA bins.
# Reduced chi-squared =         0.9526 for     57 degrees of freedom 
# Null hypothesis probability =   5.771133e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.085e-09   3.169e-09
25- 50  6.953e-09   5.935e-09
50-150  1.732e-09   1.951e-09
15-150  1.277e-08   1.103e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 26.2513       (-26.0887      -26.0887)
Norm        : 2.42964       (-2.4362     -2.4362)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.87 using 59 PHA bins.
# Reduced chi-squared =         0.9627 for     57 degrees of freedom 
# Null hypothesis probability =   5.553078e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.589e-09   3.709e-09
25- 50  4.850e-09   3.943e-09
50-150  2.213e-09   3.247e-09
15-150  1.165e-08   9.880e-09
Double BB
R1^2/D10^2  : 9.85208E+05        (      )
kT2 [keV]   : 8.22431        (-8.13544      -8.13544)
R2^2/D10^2  : 0.288869    (   )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.30 using 59 PHA bins.
#Fit statistic : Chi-Squared =          54.05 using 59 PHA bins.
#Fit statistic : Chi-Squared =          54.03 using 59 PHA bins.
# Reduced chi-squared =         0.9872 for     55 degrees of freedom 
# Reduced chi-squared =         0.9827 for     55 degrees of freedom 
# Reduced chi-squared =         0.9823 for     55 degrees of freedom 
# Null hypothesis probability =   5.014575e-01
# Null hypothesis probability =   5.110135e-01
# Null hypothesis probability =   5.118600e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.121e-09   1.952e-01
25- 50  6.949e-09   1.690e+00
50-150  1.701e-09   4.201e+01
15-150  1.277e-08   4.428e+01
Plot creation:
Wed Jun 12 23:11:34 EDT 2013